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Finding the Fourth Proportional to 131,553.96, 197,360.10 and 61,395

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Solution

The fourth proportional to 131,553.96, 197,360.10 and 61,395 is: 92,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,553.96 : 197,360.10 = 61,395 : x
  2. Step 2: Convert to fraction form
    131,553.96/197,360.10 = 61,395/x
  3. Step 3: Cross multiply
    131,553.96x = 197,360.10 × 61,395
  4. Step 4: Simplify right side
    131,553.96x = 12,116,923,339.50
  5. Step 5: Solve for x
    x = 12,116,923,339.50/131,553.96
  6. Step 6: Final answer
    x = 92,106.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.